Xiaomi Robot Vacuum S12 vs Roborock S8: Is €300 Extra Worth It?

The Setup: Two Chinese Brands, One Big Question

Xiaomi Robot Vacuum S12: €299
Roborock S8: €599

Here's the plot twist: Roborock was originally part of Xiaomi's ecosystem (like a spin-off brand). They share DNA—similar sensors, navigation algorithms, even app design.

But Roborock went premium. Xiaomi stayed budget. Now you're choosing between siblings with a €300 price gap.

Side-by-Side Specs

Feature	Xiaomi S12 (€299)	Roborock S8 (€599)
Suction Power	4000 Pa	6000 Pa
Navigation	LiDAR	LiDAR
Obstacle Avoidance	Basic (bumper sensors)	3D Structured Light (identifies objects)
Mopping	Static pad (dragging)	VibraRise 2.0 (sonic vibration + auto-lift)
Auto-Empty Station	✅ (2.5L bag)	✅ (2.5L bag)
Battery Life	180 min (250m²)	180 min (300m²)
Carpet Detection	Yes (boosts suction)	Yes (boosts + lifts mop)
App Control	Mi Home (Xiaomi ecosystem only)	Roborock app (works with Google/Alexa)
Noise Level	65 dB	67 dB
Warranty	1 year	2 years

Round 1: Vacuuming Power

Winner: Roborock S8

6000 Pa vs 4000 Pa. On paper, Roborock has 50% more suction. In practice? Both handle hardwood floors, tiles, and short carpets fine. The difference shows on thick rugs and pet hair.

I tested both on a shaggy rug (20mm pile). Xiaomi S12 got 85% of visible debris on first pass. Roborock S8 got 95%. On second pass, both hit 100%.

Real-world impact: If you have deep-pile carpets or shedding pets, Roborock's extra suction saves you re-runs. If you have hard floors or low-pile rugs, Xiaomi is enough.

Round 2: Mopping (The Big Difference)

Winner: Roborock S8 (by a mile)

Xiaomi S12 mopping = wet microfiber pad dragged across floor. It removes light dust, but dried coffee spills? Forget it.

Roborock S8 mopping = VibraRise 2.0 (sonic vibration at 3000x/min + pressure). It actually scrubs. Plus, when it detects carpet, the mop lifts 5mm automatically (Xiaomi just drags a wet pad onto your rug 💀).

Test: Dried orange juice on tiles. Xiaomi S12 made 3 passes, still left residue. Roborock S8 removed it in 1 pass.

If mopping matters to you, this alone justifies the €300 premium.

Round 3: Obstacle Avoidance

Winner: Roborock S8

Xiaomi S12 uses bump-and-reverse (like a Roomba from 2010). It hits furniture, backs up, recalculates. Works, but clumsy.

Roborock S8 uses 3D Structured Light (same tech as iPhone Face ID). It sees cables, shoes, pet bowls, and avoids them. I scattered LEGO bricks on the floor—Roborock navigated around 90% of them. Xiaomi bulldozed through.

Pet owners: If your dog leaves toys everywhere, Roborock saves you from pre-cleaning before the vacuum runs.

Round 4: App & Ecosystem

Winner: Roborock S8 (barely)

Xiaomi S12 requires Mi Home app. It works great—if you're all-in on Xiaomi smart home (lights, sensors, air purifiers). But it won't integrate with Google Home or Alexa properly.

Roborock app plays nice with everything. Google Assistant, Alexa, IFTTT automations, even Siri Shortcuts.

Both apps let you:

• Set no-go zones
• Schedule cleaning times
• Adjust suction/water flow per room
• Track cleaning history

Interface-wise, they're 95% identical (remember, Roborock spun off from Xiaomi—they copied the homework).

Round 5: Maintenance Costs

Winner: Tie

Both need:

• Dust bags: €15-20 for 3-pack (lasts 6-9 months)
• HEPA filter: €10-15 (replace yearly)
• Side brushes: €8 for 2-pack (replace every 6 months)
• Mop pads: €12 for 3-pack (replace every 3 months if you mop daily)

Annual cost: ~€50-70 for either model. No advantage to paying more upfront.

The Math: Is €300 Extra Justified?

Let's break down what you're paying for:

• +€100: Better mopping (VibraRise 2.0)
• +€80: 3D obstacle avoidance
• +€50: Higher suction (6000 Pa vs 4000 Pa)
• +€40: Better app integration (Google/Alexa)
• +€30: Extra year warranty

Total value added: ~€300. So Roborock isn't overpriced—you're genuinely getting more tech.

But here's the question: Do you need that tech?

Who Should Buy Which?

Buy Xiaomi Robot Vacuum S12 (€299) if:

• You have mostly hard floors or low-pile carpet
• You don't care about mopping (or mop manually)
• Your home is relatively uncluttered (few cables/toys)
• You're already using Xiaomi smart home products
• €300 saved = significant for your budget

Buy Roborock S8 (€599) if:

• You have pets (obstacle avoidance + stronger suction matters)
• You want actual mopping, not just damp-wiping
• You have thick carpets or rugs (6000 Pa helps)
• You use Google/Alexa smart home (not Xiaomi ecosystem)
• You value longer warranty (2 years vs 1)

The Third Option: Neither

Hot take: If you're on a tight budget, consider a basic Xiaomi model without auto-empty (€150-200). Empty the bin manually, save €400+, and mop by hand.

Auto-empty is convenient, but it's not life-changing. The jump from no robot vacuum → basic robot vacuum is huge. The jump from basic → premium? Marginal.

Final Verdict

For most people: Xiaomi S12 is the smart buy. You get 85-90% of Roborock's performance for 50% of the cost.

For pet owners or hard-floor enthusiasts: Roborock S8 earns its premium. The mopping and obstacle avoidance are genuinely better.

Rating:
Xiaomi S12: 4.5/5 (best value)
Roborock S8: 4.7/5 (best performance)